package com.heima.wemedia.interceptor;

import com.heima.model.wemedia.entity.WmUser;
import com.heima.utils.common.WmThreadLocalUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Optional;

/**
 * @author dongcy
 * @date 2024/11/18 16:46
 * @description WmTokenInterceptor
 */
@Slf4j
public class WmTokenInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //得到header中的信息
        String userId = request.getHeader("userId");
        Optional<String> optional = Optional.ofNullable(userId);
        if (optional.isPresent()) {
            //把用户id存入threadloacl中
            WmUser wmUser = new WmUser();
            wmUser.setId(Integer.parseInt(userId));
            WmThreadLocalUtil.setWmUser(wmUser);
            log.info("{}", "wmTokenFilter设置用户信息到threadlocal中...");

        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        log.info("清理threadlocal...");
        WmThreadLocalUtil.clear();
    }
}
